Radient/Accoustic/Insulating Barrier Ceramic Paint-FLIR Blocker?

Just found this company that makes different kinds of ceramic paint and paint additives that can provide radiant barriers, acoustic barriers, and insulation. I have never tried it myself but am interested in the radiant barrier and insulation. Anyone here ever try these ceramic paints? They are relatively cheap compared to the other types of barriers currently available and all you have to do is paint it on, sounds too good to be true!

[FONT=Arial, Helvetica, san-serif, Tahoma]Hy-Tech Thermal Solutions[/FONT]

The R value is not going to be very high. Which means that although it may block/reflect the heat back into the room it would be a relatively minimal percentage and then you still have to deal with the heat through ventilation or radiation.